Cable-winding mechanism for cable railways



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.TJ e Dv h S. l S u n W W m L 2 M R E L B A G Rm H F K Lm ATN... A WH JMM G N I D AN I W E ,L B A C No. 441,457. Patented Nov. Z5,v 1890.

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J. WALKER- CABLE WINDING MBGHANISM FUR CABLE RAILWAYS. No. 441,457.

Patented Nov. 25, 1890.

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UNITED STATES PATENT OEEIQE.

JOHN WALKER, OF CLEVELAND, OHIO.

CABLEW INDING MECHANISM FOR CABLE RAILWAYS.

SPECIFICATION forming part of Letters Patent No. 441,457, dated November25, 1890.

Application filed April 16, 1890- Serial No. 348,144. (No model.)

To @ZZ whom it may concern:

Be it known that I, JOHN WALKER, of the city of Oleveland,in the countyof Cuyahoga and State of Ohio, have invented certain Improvements inOable-Windin g Mechanism for Cable Railways, of which the following is aspecification.

This invention relates to improved means for transmitting' movement fromthe driving to the tail or idler drum, as will hereinafter fully appear.

In the descriptionl of the said invention which follows reference ismade to the accompanying drawings, forming a parthereof, in which-Figure 1 is a planor top View of the driving and the tail cable drums, apart of their frame, and a friction-roller which serves to transmitmovement from one drum to the other. Fig. 2 is a face view of the twodrums and the friction-roller. Fig. 3 is a cross-sec tion of a portionof one of the cable-drums on an enlarged scale. Fig. 4. is an enlargedcrosssection of a part of the frictionroller; and Fig. 5, a sectional-View of a spacing-piece forming a part of the friction-roller, also4enlarged.

Referring to the drawings, A and B are respectively the driving andthetail drum, and C and D the drum-shafts supported in the bearing-boxes Eand F. A portion of the frame of the apparatus is shown in Fig. l anddenoted by G.

The bearing-boxes E of the driving-shaft C are fixed-that is to say,they are secured immovably to the frame G-while those F of the driven ortail drum shaft D are adapted to have a limited movement longitudinallyof the frame G, for a purpose hereinafter described. This may beaccomplished in various ways-as, forinstanaby providing elongated holess in the bases of the bearingboXes where the securing-bolts passthrough.

The drums A and B, like those sllown and described in application,Serial No. 302,432, pending herewith, have their cable-grooves inindependent rings adapted to turn loosely on the smooth circumference ofthe drum proper in order that the strain on the cable may be equalized,as set forth in the said application. These loosely-turning rin gs aredenoted by d,

(see Fig.'3,) and they are confined between the flange b, which isintegral with the drum proper, and the removable lia-nge c, which isheld in position by means of stud-bolts d. Washers c provide for thetightening of the studs d, without binding the grooved rings togetherand between the flanges. vIt is evident that the surfaces of the drumand loose liange could come together, thus dispensing with the Washerscwi thout binding the grooved rings. The flanges b and c are widened orthickened toward their circumference in order to provide broadfrictional faces f, which are in contact with similar frictional faceson the frictional roller H, hereinafter described.

The jfrictional roller H has one fixed peripheral flange g and aremovable one h, and between these is confined the friction-annulus I,composedof three sections, two of which c and m are formed of layers ofpaper friction-board, and the third, a spacing-piece n, which issituated between the others and formed of iron. This spacing-piece n ishollow and constructed with internal radial ribs 0, as shown in Fig. 5.The three sections of the friction-annulus are drawn tightly togetherand clamped between the anges gand h by means of bolts p, having a nutat each end. The said frictional roller H, as described,

is secured to a shaft J, sustained in bearing-l boxes K, which, like theones F, have a slight movement longitudinally of the frame G. Thefriction-roller is on a straight linel extending from the center of onedrum to that of the other, as shown in Fig. 2. By referring to Fig. l itwill be seen that the frictional faces of the two drums are in contactwith the paper faces of the roller H.

`.The object in using paper for the sections 7.; andanl of the annulus Iis to prevent slipping, which would occur if a roller with ametallicface were used.

The cable is represented in Fig. 2 by a dotted line, and it will beunderstood that its tension serves to retain the drums closely incontact with the friction-roller, the movable or adjustablebearing-boxes F and K admit` ting of this clamping effect.

I claim as my invention-s l. A friction roller for the purposedescribed, having a removable face in three sec- IOO 1o two composed oflayers of paper adapted to engage with the flanges of lche winding-drum,mid the third or central one formed of met-al :rml not adapted to engagewith said drum, and bolts passing through the three sections and theflanges, substantially as set forth.

JOHN WALKER. Vltnesses:

J. W. SMITH, 7. M. HUBBELL.

